Hi Paul, great video on an important topic. I shoot with the S1H, and even 14 stops in DR (V-Log) often seem too little for bright skies. So, I gave HLG picture profile a try, and I am blown away - even with Rec709 delivery only. After a bit of research I figured out that the gamma curve for HLG is just the other way round than V-Log (much simplified, OK): - V-Log is logarithmic in the darks and linear in the mids and highs, going straight into the max IRE of the camera (sensor and electronics) - HLG is linear in the lows and mids and goes logarithmically into the highs Unfortunately, there's a huge misconception re V-Log, recommending to "just overexpose 1-2 stops!". No, you need to know exactly at which IRE your camera clips the highlights and never expose beyond. Also re the shadows, people tend to expect that V-Log is good for lifting shadows in post. No (again), shadows will get lowered when de-logging (CST or LUT) as the log profile lifted them already. What I've experienced with a few shots only is: - HLG gives incredible dynamic range in the highlights, allowing to pull back lots of details when grading for Rec709 export - The lows seem to be slightly cleaner that from V-Log - Even w/o any color space transform the footage looks quite decent on my editing monitor - that's what the HLG-curve was designed for - HLG grades very nicely, appears to produce less color bandings - HLG renders in my quite complex grading node tree in DR appr. 2-3 times faster compared to V-Log - As neither camera's LCD nor EVF are true HDR devices, judging exposure just from the visual impression only is a bit tricky - I use 1 zebra (90% IRE) and the built-in spot meter for faces / middle gray So, HLG does not add more dynamic range, but in my experience allows to bring back more details in the highlights and very high mids. Another great plus is: most modern cameras can shoot HLG which is a standardized scene referred gammut and gamma, allowing to throw footage from diferent cameras into the same timeline w/o the need to change CST nodes to match the camera from clip to clip. And, the footage automatically becomes future-proof for next gen of HDR devices, even if you deliver in Rec709 now. Great to see someone from Germany here with the S5 (Hallo Paul)!
What a great comment thank you very much :) I also experienced the same with HLG. I use it to make some HDR Videos from California currently :) the colors can look amazing.
ND filters are great. I have a lot variable ND filters. But all screw in circular. Cost me about $500 for everything :) Maybe I should have done the square.
When shooting with a camcorder I often used a polarizing filter to darken the bright blue or hazy sky while leaving everything else untouched. This only works on sunny days. Now that I'm shooting with the S5 I don't bother with that anymore. I shoot in vlog and have plenty of dynamic range available. I've already shot intentionally overexposed sometimes, knowing that I can pull back in post. The polarizer is now only used to reduce reflections or cut through some haze at times.
Wow the sounds amazing that you have shot internationally published stuff with this amazing camera indeed is the Lumix AS5 a very good camera when it comes to dynamic range
Hi Paul, great video on an important topic. I shoot with the S1H, and even 14 stops in DR (V-Log) often seem too little for bright skies.
So, I gave HLG picture profile a try, and I am blown away - even with Rec709 delivery only.
After a bit of research I figured out that the gamma curve for HLG is just the other way round than V-Log (much simplified, OK):
- V-Log is logarithmic in the darks and linear in the mids and highs, going straight into the max IRE of the camera (sensor and electronics)
- HLG is linear in the lows and mids and goes logarithmically into the highs
Unfortunately, there's a huge misconception re V-Log, recommending to "just overexpose 1-2 stops!".
No, you need to know exactly at which IRE your camera clips the highlights and never expose beyond.
Also re the shadows, people tend to expect that V-Log is good for lifting shadows in post.
No (again), shadows will get lowered when de-logging (CST or LUT) as the log profile lifted them already.
What I've experienced with a few shots only is:
- HLG gives incredible dynamic range in the highlights, allowing to pull back lots of details when grading for Rec709 export
- The lows seem to be slightly cleaner that from V-Log
- Even w/o any color space transform the footage looks quite decent on my editing monitor - that's what the HLG-curve was designed for
- HLG grades very nicely, appears to produce less color bandings
- HLG renders in my quite complex grading node tree in DR appr. 2-3 times faster compared to V-Log
- As neither camera's LCD nor EVF are true HDR devices, judging exposure just from the visual impression only is a bit tricky - I use 1 zebra (90% IRE) and the built-in spot meter for faces / middle gray
So, HLG does not add more dynamic range, but in my experience allows to bring back more details in the highlights and very high mids.
Another great plus is: most modern cameras can shoot HLG which is a standardized scene referred gammut and gamma, allowing to throw footage from diferent cameras into the same timeline w/o the need to change CST nodes to match the camera from clip to clip.
And, the footage automatically becomes future-proof for next gen of HDR devices, even if you deliver in Rec709 now.
Great to see someone from Germany here with the S5 (Hallo Paul)!
What a great comment thank you very much :) I also experienced the same with HLG. I use it to make some HDR Videos from California currently :) the colors can look amazing.
Very well done....i didnt knew rhis
Now you know 👍
Cooles Viedo
Das stimmt
ND filters are great. I have a lot variable ND filters. But all screw in circular. Cost me about $500 for everything :) Maybe I should have done the square.
I have two from Gobe and these.....not so expensive ones with "artistic" Color Management haha^^
When shooting with a camcorder I often used a polarizing filter to darken the bright blue or hazy sky while leaving everything else untouched. This only works on sunny days. Now that I'm shooting with the S5 I don't bother with that anymore. I shoot in vlog and have plenty of dynamic range available. I've already shot intentionally overexposed sometimes, knowing that I can pull back in post. The polarizer is now only used to reduce reflections or cut through some haze at times.
Wow the sounds amazing that you have shot internationally published stuff with this amazing camera indeed is the Lumix AS5 a very good camera when it comes to dynamic range
joooo this is such a cheap filter lol^^ get a better one haha